Guilford, CT 06437 ZIP Code Profile

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Guilford, CT

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ZIP Code 06437: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Guilford, CT 06437

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 870
  • Single Family Addresses: 8,718
  • Multi-Family Addresses: 224
  • County: New Haven County
  • Centroid: Latitude 41.316, Longitude -72.696
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


06437 ZIP Code Map

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Guilford, CT 06437 Data & Demographics (As of July 1, 2015)


Total Population 22,457
Population in Households 22,153
Population in Familes 18,945
Population in Group Qrtrs 304
Population Density1 473
Diversity Index2 20


Total Households 8,791
Average Household Size 2.52
Family Households 6,330
Average Family Size 3


Total Housing Units 9,640 (100%)
Owner Occupied HU 7,323 (76.0%)
Renter Occupied HU 1,468 (15.2%)
Vacant Housing Units 849 ( 8.8%)
Median Home Value $380,104
Average Home Value $440,311


Median Household Income $96,818
Average Household Income $133,926
Per Capita Income $52,601
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.08% 0.11%
Households 0.19% 0.15%
Families 0.1% 0.09%
Median Household Income   2.56%
Per Capita Income   2.51%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


Guilford, CT 06437 - Peer Comparisons by Rank and Percentile

The table below compares 06437 to the other 272 ZIP Codes in Connecticut by rank and percentile using July 1, 2015 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 58 79th
Population Density1 # 155 43rd
Diversity Index2 # 172 37th
Median Household Income # 55 80th
Per Capita Income # 32 89th

Additional comparisons and rankings can be made with a VERY EASY TO USE Connecticut Census Data Comparison Tool.